Means for adjusting ventilating-closures.



E. LLEWELLYN. I MEANS FOR ADJUSTING VENTILATING CLOSURES.

APPLICATION FILED NOV- 27,19l4.

Patented Mar. 13, 1917.

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INVENTOR Evqn Llewel WITNESSES ATTORNEY rmrrnn STATES PATENT OFFICE.

EVAN LLEWELLYN, OF YSTRAD, RHONDDA, WALES.

MEANS FOR USTING TILATING-CLOSURES.

Application filed November 27, 1914. Serial N 0. 874,188.

To all whom it may concern:

Be it known that I, EVAN LLEWE LYN, a subject of the King of GreatBritain and Ireland, and residing at Tanybryn, Ystrad, ithondda, in thecounty of Glamorgan, Wales, have invented certain new and usefulimproved Means for Adjusting Ventilating- Closures, of which thefollowing is a specification.

This invention relates to adjusting means for ventilating closures suchfor example, as skylights, fanlights, ventilators, and windows of thetype comprising an adjustment bar secured to the movable member of thewindow or the like, and a spring-controlled detent carried by the fixedmember and adapted to engage one or the other of a series of aperturesin the adjustment bar.

The object of the invention is to devise such improvements inarrangements of the above character as will enable the same to beemployed with any type of window or like closure, wl'iether the same isarranged vertically, horizontally or inclined and whether the closingmember is to move inward or outward, a further advantage of theinvention being that the device is capable of being readily manipulatedhowever inaccessible may be the window or the like to which it isfitted.

lVith this end in view the invention con sists in the novel combinationshereinafter more particularly referred to.

The accompanying drawings illustrate one mode of carrying out theinvention':

Figures 1 and 2 are a side sectional eleva-- tion and a front elevationmore or less diagrammatic showing the invention applied to a ventilatoror fanlight; I

Fig. 3 is an enlarged view of a detail shown in Fig. 2.

In carrying my invention into effect in one convenient manner Ipivotally secure to the free edge of the fanlight or the like q which ishinged to the structure Z) along its other edge as at c in the usualmanner a bar or like member (Z which may be straight or curved asdesired and which may be formed from metal or other suitable material.The bar or the like member (Z is adapted to protrude through a slot in aguide block 6 iounted upon the framework of the fanlight or the like,which guide is adapted to oscillate (as, for example, by being pivotallymounted in brackets f fixed to the framework) so as to accommodateitself to the Specification of Letters Patent.

Patented Mar.,1 3, 1917.

movements of the bar (Z, this being necessary by reason of the fact thatthe fanlight rotates' about an axis coinciding with the center line ofthe hinge 0. The bar or like member (Z is slotted or notched atintervals along its length or provided with apertures with which aspringcontrolled catch or detent Z mounted upon the guide 6 is normallyadapted to engage, the number of slots, openings or notches beingregulated to suit the extent of adjustment or regulation that isrequired for the fanlight or the like.

In one convenient construction the detent comprises a projection h (Fig.3) carried by a double-ended lever 71 pivoted. upon the guide 6 andcontrolled by a spring is, the arrangement being such that theprojection 72, passes through an aperture in the part of the guide 6adjacent to the member (Z. The free end of the lever 2' is connected toan operating cord or like flexible member 0 so that the projection k maybe raised by pulling upon the cord when it is desired to alter theadjustment of the fanlight, and the adjustment may be efl'ected in onedirection or the other by pulling upon a cord or like flexible operatingmember p. having its ends attached respectively to the two ends of theadjustment bar 03 and being adapted to pass over two pulleys or likeanti-friction members n mounted in the guide block 6 preferablyimmediately below the slot therein through which the adjustment bar clpasses;

A pulley m is also provided for the cord or the like member 0 for thelever 2'. The respective cords are of such a length that they may bewithin easy reach of the operator to facilitate the manipulation of thedevice however inaccessible the device itself may be.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is Adjusting means for ventilating closurescomprising a guide block pivoted to the fixed portion of the Window orthe like and having a slot therethrough, an adjustment bar pivoted tothe movable member of the window or the like and, having a plurality ofapertures therein, the adjustment bar passing through the slot in saidblock, a springcontrolled detent comprising a double-ended lever pivotedupon said block and having a projection on one endcthereo'f adapted topass through an aperture in said block, and into one or the other of theapertures in said adjustment bar, a flexible operating member Liandbelow the slot in said guide block for attached to each end of saidadjustment bar, In testimony whereof I have signed my a separateflexible operating member attached name to this specification in thepresence of 10 to oneend of said double-ended lever, two two subscribingwitnesses.

anti-friction members arranged centrally of EVAN LLEYWELLYN.

the support of the flexible member operat- Witnesses: ing the adjustmentbar, and an anti-friction W. WARREN TRIGGS, member for the cordoperating the detent. BERTRAM H. MATTHEWS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. 7

a Washington, D. G.

